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REPLICATION MATERIALS
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AUTHORS: Juhl, Sebastian and Hilpert, David
ARTICLE: "Wheeling and Dealing Behind Closed Doors: Estimating the Causal Effect
          of Transparency on Policy Evaluations Using a Survey Experiment"
JOURNAL: Political Science Research and Methods
UPDATED: November 05, 2018
CONTACT: sebastian.juhl@gess.uni-mannheim.de or dhilpert@mail.uni-mannheim.de
		 http://www.sebastianjuhl.com



INSTRUCTIONS:
These files contain the code necessary to reproduce all results reported in the main article as well as in the Supplementary Materials.
Due to the privacy policy of the German Internet Panel (GIP), we are not allowed to provide the datasets since users need
to sign a contract which ensures that the data will only be used for non-commercial, scientific purposes. Once the contract is signed,
users can download the data from the GESIS Data Archive. Please follow the links below to request data access.
Before executing the scripts, please obtain the datasets from the GESIS Data Archive and store it in the subfolder "Data."
The scripts provided here create a subfolder "Output" where all tables and figures will be saved.



DATA ACCESS:
Only Wave 30 is needed in order to replicate our main analysis. The balance tests performed in the Supplementary Materials are
based on the GIP's Wave 25. Please follow the links in order to get access to the datasets and store the data in the
empty subfolder called "Data":

	Wave 30:
	Blom, Annelies G.; Felderer, Barbara; Herzing, Jessica; Krieger, Ulrich; Rettig, Tobias;
	SFB 884 ´Political Economy of Reforms´, Universität Mannheim (2018): German Internet Panel,
	Welle 30 (Juli 2017). GESIS Datenarchiv, Cologne. ZA6904 Datenfile Version 2.0.0,
	doi:10.4232/1.13153

	Link: http://dx.doi.org/10.4232/1.13153
	GESIS Study Number : ZA6904


	Wave 25:
	Blom, Annelies G.; Bruch, Christian; Felderer, Barbara; Gebhard, Franziska; Herzing, Jessica;
	Krieger, Ulrich; SFB 884 ´Political Economy of Reforms´, Universität Mannheim (2017): German
	Internet Panel, Wave 25 - Core Study (September 2016). GESIS Data Archive, Cologne.
	ZA6757 Data file Version 1.0.0, doi:10.4232/1.12755

	Link: http://dx.doi.org/10.4232/1.12755
	GESIS Study Number : ZA6757



SOFTWARE:
The analysis was performed with R (version 3.3.1) using the following packages:
- readstata13	(version 0.9.0)
- MASS 			(version 7.3-45)
- nnet 			(version 7.3-12)



TABLE OF CONTENTS:
- Main Folder "Juhl_Hilpert_Replication":
	1) "MainAnalysis.R": main script for replicating all results reported in the article.
	2) "Supplementary.R": script for replicating all results shown in the Supplementary Materials.

	- Subfolder "Data"
		Empty folder to store the datasets once obtained from the GESIS Data Archive.



NOTE:
If you have any further questions concerning the replication materials, please email either of the authors.
